TH31269B - Pressure indication device - Google Patents

Abstract

Pressure indication device (2) As an example for fixation to the tongue of a tire (1) exposed, the device holds a bendable diaphragm that cannot pass air (7) on the wall. one side of The airtight sealed chamber is permanently impenetrable (8) is pressurized to the The pressure is given to mechanical joints (10, 12), which move depending on If the pressure in the tire where the device is connected. Greater than or less than the pressure in the chamber (8) as an example will rotate. Two colored balls (14). Therefore, the colors shown will provide a visible signal that will indicate if the tire pressure exceeds or falls below the specified pressure. This can detect leaks or wasted air by quick look

Claims (15)

1. A pressure-indicating device comprising an enclosure (9) that includes an inlet (3) for pressurized air, a permanently airtight chamber (8) containing pressurized gas, a flexible assembly (7) situated between the inlet (3) and chamber (8), and a signaling device (14) whose signal depends on the pressure difference between the inlet and chamber. The flexible assembly is a flexible airtight diaphragm (7) which, as the pressure in the inlet (3) increases, is stretched into the pressurized chamber (8). The device includes connection pathways (10, 12, 20) between the diaphragm (7) and the signaling device (14) which are tuned to activate the signaling device (14) to generate a signal representing the inlet pressure relative to the pressure in the airtight chamber. 2. A pressure indication device conforming to claim 1, where the signaling device (14) is placed inside the said chamber (8). 3. A pressure-indicating device conforming to claim 1 or 2, in which the inlet is adjusted to open the rubber valve (1,21) and form a sealed contact (5) with that valve. 4. A pressure indication device conforming to claim 3, whereby the chamber is pressurized to a pressure approximating the lower-than-optimal tire pressure for the specific vehicle and its load conditions. 5. A pressure-indicating device conforming to one of the preceding claims, in which the inlet contains a protrusion (6) which is adjusted to press against the center pin (21) of the valve when the device is connected to the rubber enclosure. 6. A pressure indication device conforming to claim 5, whereby the inlet tube shall be incorporated with a seal (5) adjusted to seal the connection between the rubber housing (1) and the housing (9) of the device. 7. A pressure indication device that conforms to one of the claims of claims 1 through 6, whereby the signaling device (14) is able to provide at least two different signals. 8. A pressure indication device conforming to claim 7, where the signaling device is a mechanical device. 9. A pressure indication device conforming to claim 8, whereby the signaling device is fitted with a rotatable ball bearing (14) in which the ball has at least two colored areas. 10. A pressure indication device that conforms to one of the claims of claims 1 through 9, whereby the indication device is a visible indicator located in a location observable from the outside of the device with a viewing angle of at least 110 degrees. 11. A pressure indicating device that conforms to one of the claims of Reputations 1 through 10, where the method of connection is a mechanical connection. 12. A pressure-indicating device conforming to claim 11, where the connecting path is assembled by the provision of a piston (10), a longitudinal assembly (12) and a crank path (20), where the piston (10) is mounted against the diaphragm (7), the crank path (20) is attached to the transmission device (14) and the longitudinal assembly (12) extends between the piston (10) and the crank path (20). 13. A pressure-indicating device conforming to claim 12 in which the piston (10) is pushed by a spring (13) toward the diaphragm (7). 14. A pressure indication device that conforms to one of the preceding claims, in which the diaphragm (7) is constructed or incorporated with a perforated disc (18). 15. A pressure indication device conforming to claim 14, whereby a perforated disc (18) is designed to be perforated if the pressure received on the side of the diaphragm (7) away from the chamber (8) is more than twice the pressure in the chamber.